[Lateralized forms of parkinsonism (clinical, electroencephalographic and psychomotor aspects)]

As many as 101 parkinsonism patients were examined. The mean patients' age was 50 years. Of these, 46 patients (12 with left-handed clinical manifestations of parkinsonism, 17 with right-handed, 17 with bilateral ones) were subjected to comprehensive examinations -- clinical, electrophysiological and psychomotor. Ten healthy persons of the respective age and sex made up the control group. The examination made it possible to reveal the clinical and electrophysiological characteristics of the different patterns of parkinsonism. At the same time it allowed the conclusion about the involvement into the pathological process of both hemispheres whatever the primary lateralization of the clinical manifestations; about varying roles played by the right and left hemispheres in the pathogenesis of parkinsonism.